Bloom Manufacturing LS12H Series - Manual (Page 5)

Section 3 Maintenance & Repair
ƒ Make sure that there is no load on the winch cable and that all of the
A winch, like other types of machinery, needs to have regular maintenance if it is to perform properly, give lasting service, and
provide safe winching.
(a) Clean and Inspect:
hydraulic hoses have been disconnected before servicing unit.
CAUTION
(a) Clean and Inspect:
Thoroughly clean all of the parts in a good grade of cleaning solvent; one that is not flammable, not toxic and will not
cause skin rashes. If necessary, use rubber gloves. Inspect all parts for wear, nicks, scratches and damage that would
render them unusable. If a part is questionable, it is better to replace it rather than take a chance on premature failure
when the winch is placed back in service. Always replace O-rings and seals, and it is a good idea to use new roll pins
as well. Sometimes it is permissible to reuse bearings and bushings...it depends on how much use they have had. The
rollers should not exhibit any surface irregularities. If the rollers show any sign of spalling, corrosion, discoloration,
y g y g p g
material displacement or abnormal wear, the bearings should be replaced.
Likewise, the cage should be inspected for unusual wear or deformation, particularly the cage bars. If there is any
damage that will impair the cage’s ability to separate, retain, and guide the rollers properly, the bearing should be
replaced. The thrust washer contact areas should be free from any surface irregularity that might cause excessive
abrasion or friction. If the winch was disassembled only to replace damaged seals after a short period of service, it is
not necessary to replace the bearings. Experience and common sense, along with a good inspections, will determine if
they can be used again Always coat O rings bearings bushings and the rubber parts of seals with oil during assembly
they can be used again. Always coat O-rings, bearings, bushings and the rubber parts of seals with oil during assembly.
Use a light coat of thread sealing compound on pipe fittings and plugs.
(b) Oil Change Information:
The winch vent/fill and drain plugs are located at the base of the face plate. Oil should be changed every 100 hours of
operating time, or every six months, whichever comes first.
(c) Oil Level:
To check the oil level, remove the level plug. The oil should be level with the bottom of this opening. If more oil is
needed, use the recommended gear oil listed below.
OIL CAPACITY CHART
Base Mounted
Position*
LS8H, LS10H, LS11H, LS12H
All Other Mounting
Positions
Winch
Type
Winch Series
1 Pint 2 Pints
Note:
Base mounted position is
when the worm shaft is
below the bronze gear.
Cable
LS12H
2 Pint 3 Pints
Bloom Mfg Inc. 319-827-1139 319-827-1140 fax www.bloommfg.com
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